Acer AL1714 Schematic

Acer AL1714
Service Guide

Service guide files and update s are available
on the CSD web : for more information,
Please refer to http: csd.acer.com.tw

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Table of Contents

Chapter 1 Monitor Features…………………………………………….…. 8

1.1 Test conditions……………………………………….……….… 8

1.2 Features…………………….………………………………….... 8

1.3 LCD Panel specification………………………………………... 9

1.4 Connector Pin Assignment………………………...…..……...12

Chapter 2 OPERATING INSTRUCTIONS………..….………….……14

2.1 Function Name…………………………….…….………………14

2.2 OSD Menu Description…..……………….…….………………16

2.3 OSD Operation…………………………….…….………………17

2.4 OSD Function Definition……...………….……….…………….18

2.5 Plug and Play…………………………….…………………...…19

2.6 Power Saver……………………………………………………..19

Chapter 3 Machine Disassembly and Assembly……..………….……20

3.1 Machine Disassembly……………………………………..……20

3.2 Machine Assembly……………….…………………………...…23
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Chapter 4 Troubleshooting……………………...……….………….………26

4.1 Abnormal display Troubleshooting…………………….………26

4.2 Abnormal (On/Off, LCD Display, K/B) Troubleshooting……..28

4.3 Abnormal (BIOS, OSD, Other Display) Troubleshooting……29

4.4 Audio Abnormal………………………….…………………..…..30

Chapter 5 Connector Information…………...……….…………………....31

5.1 Function Block Diagram………………………………….…..…31

5.2 Connector Location……..………………………………….……32

5.3 Main Board Pin Assignment Introduction……………. ….……33

Chapter 6 FRU(Field Replaceable Unit……...……….…………….……38
Chapter 7 Schematic Diagram…………….………………..………………41

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Monitor Features

Chapter 1

1.1

Test Conditions

Item Condition

Temperature
Humidity
AC input voltage
Brightness Maximum with OSD setting

Contrast Middle with OSD setting
Resolution setting 1280 x 1024 @60HZ
Color temperature With OSD setting
Measuring instrument Topcon luminance colorimeter BM-5A or equivalent
Others Before measuring, “Auto Config” & “Auto Balance” must be done in

1.2 Features

 17” SXGA TFT LCD Panel
 TN Mode Liquid Crystal
 D-SUB
 Audio Function (Optional)
 Support to 75Hz Refresh Rate
 Support VESA-DCC 2B plug & play function
 Support VESA-DPMS Power Management Functio n
 Super Wide Viewing Angle
 High Brightness & Contrast Ratio
 High Brightness & Contrast Angular Dependent
 Fast LC Response Time
 Light Weight

1.3 LCD panel Specification

Normal room temperature (25±2℃)
50±10%
100V±2V, 120±2V, 60Hz / 240±2V, 50Hz

advance

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1.3.1 Optical Specifications

The relative meas urem ent m ethods of optic al char acter istics are sh own in 4.2 . The
following items should be measured under the test conditions described in 4.1 and
stable environment shown in Note (4).

Item Symbol Condition Min. Typ. Max. Unit Note

Contrast Ratio CR 250

θ

=0°, θY =0°

TR -

LC Response Time

T

Luminance of center point L

Luminance(Angular dependent) LR - 1.3 1.7 - (2), (5)

Contrast (Angular-dependent) Cm 0.5 0.9 - - (2), (6)
Brightness Uniformity Uni. - 1.1 1.3 - (2), (4)

Rx 0.604 0.634 0.664 -

Red

Ry 0.330 0.360 0.390 -

Gx 0.251 0.281 0.311 -

Green

Color
Chromaticity

Blue

Gy 0.572 0.602 0.632 ­Bx 0.112 0.142 0.172 -

By 0.037 0.067 0.097 -

x

Viewing

-

F

Normal

Angle

250 350 -

350

4

10

- - (2), (4)

10 ms

(3)

25 ms

cd/

(2), (4)

2

m

(2)

Viewing
Angle

White

Horizontal

Vertical

Wx 0.283 0.313 0.343 ­Wy

θ

+

x

θ

x

θ

+

Y

θ

Y

­CR≥10

-

0.299 0.329 0.359 ­70 80 ­70 80 -

Deg. (1),(4)

50 60 ­50 60 -

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θx-

θx+ θy-

θy+

Note (1) Definition of Viewing Angle (θx, θy):

Normal

θx = θy = 0º

θX- = 90º

x-

6 o’clock

y- = 90º

θ

y-

Note (2) Definition of Contrast Ratio (CR):

The contrast ratio can be calculated by the following expression and figure

below.

Contrast Ratio (CR) = L255 / L0
L255: Luminance of gray level 255

L 0: Luminance of gray level 0
CR = CR (5)

CR (X) is corresponding to the Contrast Ratio of the point X at Figure in Note
(5).

Definition of luminance measured points and Brightness Uniformity:

0

0

256

512

768

1024

Vertical Line Number

y+

12 o’clock direction

y+ = 90º

θ

x+

θX+ = 90º

Horizontal Line Number

640320

5

3

Active area

960

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4

Horizontal Line Number [pixel]

1280

X

: test point
X=1 to 5

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Luminance of center point: L=L(5)
Brightness Uniformity Measurement points: Five specified points 1-5
Formula: Maximum [L (1), L (2), L (3), L (4), L (5)]/Minimum [L (1), L (2), L (3), L (4),

L (5)]

Note (3) Definition of Response Time (TR, TF):

100%

90%

Optical

Response

10%

0%

T

R

Note (4) Measurement Setup:

The LCD module sh ould be stabilized at g iven temperature for 20 m inutes
to avoid abrupt temperatur e change during measurin g. In order to stabilize
the luminance, the measurem ent should be execute d after lighting Bac klight
for 20 minutes in a windless room.

LCD Module

LCD Panel

Center of the Screen

Field of View = 2º

500 mm

Gray Level 0

Photometer
(TOPCON BM-5A)

Light Shield Room
(Ambient Luminance < 2 lux)

Gray Level 255 Gray Level 255

T

F

Time

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1.4 Connector Pin Assignment

1.4.1 D-sub mini 15pin Connector

Pin No. Pin Function Pin No. Pin Function

1 Red video input 9 NC
2 Green video input 10 Ground

3 Blue video input 11 No connection
4 NC 12 (SDA)

5 Ground 13 Horizontal sync (Composite sync)
6 Red video ground 14 Vertical sync

7 Green video ground 15 (SCL)
8 Blue video ground

1.4.2 DC Connector

DC Power Jack, d=3.0mm

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1.4.3 Audio Connector (Optional) Phone Jack, d=3.5mm

(AL1714m/ AL1714bm)

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OPERATING INSTRUCTIONS

Chapter 2

2.1 Function Names

2.1.1 Front

No. Name Descriptions

1 Power Switch Power On/Off
2 LED Indicator Green Normal operation

Orange Power management

3 MENU OSD control MENU button

4 > Right selection/ Volume button (AL1714m/AL1714bm)

5 < Left selection/ Volume button (AL1714m/AL1714bm)
6 AUTO Adjust Clock, Phase, H Position and V Position

automatically

7 Speaker 2.5W x 2

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Back

2.1.2

No. Name Descriptions

8 AUDIO-IN d=3.5mm stereo mini Jack (AL1714m/ AL1714bm)

9 VGA-IN D-sub mini 15pin Connector
10 DC-IN DC Power Jack, d=2.0mm.
11 Lock hole Kensington

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